CA236895A - Lentille bifocale - Google Patents

Lentille bifocale

Info

Publication number
CA236895A
CA236895A CA236895A CA236895DA CA236895A CA 236895 A CA236895 A CA 236895A CA 236895 A CA236895 A CA 236895A CA 236895D A CA236895D A CA 236895DA CA 236895 A CA236895 A CA 236895A
Authority
CA
Canada
Prior art keywords
trifocal
lense
trifocal lense
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA236895A
Other languages
English (en)
Inventor
W. Bugbee Lucien
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ONEPIECE BIFOCAL LENS Co
Original Assignee
ONEPIECE BIFOCAL LENS Co
Publication date
Application granted granted Critical
Publication of CA236895A publication Critical patent/CA236895A/fr
Expired legal-status Critical Current

Links

CA236895A Lentille bifocale Expired CA236895A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA236895T

Publications (1)

Publication Number Publication Date
CA236895A true CA236895A (fr) 1924-01-08

Family

ID=35140924

Family Applications (1)

Application Number Title Priority Date Filing Date
CA236895A Expired CA236895A (fr) Lentille bifocale

Country Status (1)

Country Link
CA (1) CA236895A (fr)

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